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Title:
SLAG CEMENT
Document Type and Number:
WIPO Patent Application WO2002028794
Kind Code:
A3
Abstract:
The invention relates to a slag cement having an improved early strength and containing aluminosilicates, blast furnace slag, clinker and CaSO4. The inventive slag cement is characterized by comprising a content of 70 to 95 wt. % blast furnace slag provided in ground form with > 4500 Blaine (cm2/g), whereby up to half of this proportion can be substituted by aluminosilcates such as fly ash, alumina, marl or the like. The slag cement also comprises 0.1 to 2 wt. % clinker, sulfate provided in quantities of less than 5 wt. %, calculated as SO3, and 0.3 to 1 wt. % of a superliquifier such as naphthalene sulfonate.

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Inventors:
KO SUZ-CHUNG (CH)
Application Number:
PCT/IB2001/002488
Publication Date:
July 25, 2002
Filing Date:
October 04, 2001
Export Citation:
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Assignee:
KO SUZ-CHUNG (CH)
International Classes:
C04B7/21; C04B28/08; (IPC1-7): C04B7/21
Foreign References:
EP0434112A11991-06-26
DE3701717C11988-04-07
US4877452A1989-10-31
Other References:
DATABASE WPI Section Ch Week 199917, Derwent World Patents Index; Class L02, AN 1999-190938, XP002199796
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